Helium balloon at a pressure, Chemistry

A 10L helium balloon at a pressure of two bar at 27C. Some O2 is now inside in balloon and final volume is made 30L. the pressure also fell to 1 bar at similar temperature. the partial pressure of O2 at end is?

Solution) For helium.

 n(He)=P(1)V(1)/RT.
for oxygen n(O)=P(2)V(2)/RT

partial pressure of O2= (mole fraction of O2).(Total pressure)

= [  P(2).V(2) / P(2).V(2) + P(1).V(1)  ].(1)
= 1.30 / 1.30 + 2.10
=30/30+20=3/5 bar
Hence 0.6 bar (ANS)

Posted Date: 3/30/2013 12:57:31 AM | Location : United States







Related Discussions:- Helium balloon at a pressure, Assignment Help, Ask Question on Helium balloon at a pressure, Get Answer, Expert's Help, Helium balloon at a pressure Discussions

Write discussion on Helium balloon at a pressure
Your posts are moderated
Related Questions
Energy difference is maximum between which of the consecutive energy levels in an atom? Ans) According to the line spectrum of hydrogen maximum energy is there between FIRST AND

The isomerim exhibited by the compounds having the same molucular formula but they having different functional groups is called functional group isomerism.For example C 3 H 6 O c

Q. Calculate the Slope of a Line from Data Points? Compute the slope of a line that contains these data points (3.0 cm 3 , 6.0 g) and (12 cm 3 , 24 g). To compute the slope of

how carbon tetra-valency lead to stability?

Phenols : Physical properties: 1.Low molecular weight phenols are normally liquids or low melting solids 2.Due to H- bonding ,most low molecular weight phenols are water soluble 3.

How can we control the product yield of the Benkeser reaction?

Write conditions and reactions for the following conversions: (i) Chloroform into diethylcarbonate (ii) Phenol into salicylic acid (iii) 2-propanone into 2-inethyl-2-prop

density of gas is 2.86 ltr.the gas maz be-

Q. Explain laws of Electrolysis? Ans . A  spontaneous reaction  takes place by itself. Some redox reactions are not spontaneous. In a  no n-spontaneous redox reaction ,

The energy released when one mole of ionic crystal is produced by the combination of the corresponding gaseous (+ve) and (-ve) ions brought from infinite distance is known as latti